Literature summary extracted from
Neehaul, Y.; Juarez, O.; Barquera, B.; Hellwig, P.
Infrared spectroscopic evidence of a redox-dependent conformational change involving ion binding residue NqrB-D397 in the Na+-pumping NADH quinone oxidoreductase from Vibrio cholerae (2013), Biochemistry, 52, 3085-3093 .
No PubMed abstract available
Protein Variants
EC Number |
Protein Variants |
Comment |
Organism |
---|
7.2.1.1 |
D397E |
subunit NqrB. In the mutant, the spectral features characteristic of COOH groups are shifted, and the hydrogen binding of the ion binding cluster is weakened |
Vibrio cholerae serotype O1 |
Inhibitors
EC Number |
Inhibitors |
Comment |
Organism |
Structure |
---|
7.2.1.1 |
Rb+ |
presence of Rb+ induces conformational changes, indicating a changed accessibility of the sodium binding sites |
Vibrio cholerae serotype O1 |
|
Metals/Ions
EC Number |
Metals/Ions |
Comment |
Organism |
Structure |
---|
7.2.1.1 |
K+ |
Na+-NQR undergoes significant conformational changes upon oxidoreduction, depending on the monovalent cation present (Na+, Li+, K+, or Rb+). Deprotonated acid residues are involved in the binding of cations, pointing toward a monodentate binding mode in the oxidized form of the enzyme and bidentate binding in the reduced form |
Vibrio cholerae serotype O1 |
|
7.2.1.1 |
Li+ |
Na+-NQR undergoes significant conformational changes upon oxidoreduction, depending on the monovalent cation present (Na+, Li+, K+, or Rb+). Deprotonated acid residues are involved in the binding of cations, pointing toward a monodentate binding mode in the oxidized form of the enzyme and bidentate binding in the reduced form. Residue D397 is one of the acid residues involved in Na+ and Li+ binding |
Vibrio cholerae serotype O1 |
|
7.2.1.1 |
Na+ |
Na+-NQR undergoes significant conformational changes upon oxidoreduction, depending on the monovalent cation present (Na+, Li+, K+, or Rb+). Deprotonated acid residues are involved in the binding of cations, pointing toward a monodentate binding mode in the oxidized form of the enzyme and bidentate binding in the reduced form. Residue D397 is one of the acid residues involved in Na+ and Li+ binding |
Vibrio cholerae serotype O1 |
|
Organism
EC Number |
Organism |
UniProt |
Comment |
Textmining |
---|
7.2.1.1 |
Vibrio cholerae serotype O1 |
A5F5X1 and A5F5X0 and A5F5Y7 and A5F5Y6 and A5F5Y3 and A5F5Y4 |
A5F5X1: subunit NqrA, A5F5X0: subunit NqrB, A5F5Y7: subunit NqrC, A5F5Y6: subunit NqrD; A5F5Y3: subunit NqrE, A5F5Y4: subunit NqrF. The enzyme consists of six subunits encoded by the NQR operon. |
- |
7.2.1.1 |
Vibrio cholerae serotype O1 ATCC 39541 |
A5F5X1 and A5F5X0 and A5F5Y7 and A5F5Y6 and A5F5Y3 and A5F5Y4 |
A5F5X1: subunit NqrA, A5F5X0: subunit NqrB, A5F5Y7: subunit NqrC, A5F5Y6: subunit NqrD; A5F5Y3: subunit NqrE, A5F5Y4: subunit NqrF. The enzyme consists of six subunits encoded by the NQR operon. |
- |
Synonyms
EC Number |
Synonyms |
Comment |
Organism |
---|
7.2.1.1 |
Na(+)-translocating NADH-quinone reductase subunit B |
- |
Vibrio cholerae serotype O1 |
7.2.1.1 |
NqrB |
- |
Vibrio cholerae serotype O1 |